The eccentric but genial Oh Hyun Jae (Jang Hyuk) is a shadow of his former self. In his heyday, he was a peerless criminal profiler with phenomenal powers of deduction – the prize of the police force. His world was shattered when a bomb planted by a serial killer took the life of his young fiancée. Oh responded by cutting himself off from the rest of the world, determined to live out the rest of his life in isolation. But when a serial killer who the police thought had died long ago returns to terrorize the city, the police force is desperate and needs urgent help. A rising star of the police force, Hwang Hwa Young (Jin Seo Yun), resolves to outwit the killer. To do so, she decides to team up with both Oh and a remarkable rookie cop – Cha Soo Young (Choi Sooyoung), whose photographic memory may prove to be a powerful crime-fighting weapon... Can the unlikely trio really work together? Does Oh still have his genius-level skills? And will the crime-busters stop the deadly killer from carrying out his gruesome plans? “Tell Me What You Saw” is a 2020 South Korean drama series directed by Lee Joon Hyeong.